Star Tech.com's 8cm x 8cm x 2.5cm PC case fan is an add-in cooling fan made from polished aluminum, designed to fit most computers. This attractive case fan can be used to circulate cool air into the case or exhaust warm air out, preventing problems due to overheating components. A quiet running dual ball bearing DC motor coupled with a high-efficiency blade design is capable of moving 26.6 CFM (cubic feet per minute) of air. Power is supplied to the fan using a TX3 Molex power connection. Because of its polished appearance, the FAN8X25T3AL goes well with professional cases constructed with aluminum.